Table 4.

Adjuvant drugs in the treatment of trigeminal neuralgia.

Drug	Dosage
Baclofen		Oral: initial dose: 5 mg orally 3 times a day for 3 days, then 10 mg orally 3 times a day for 3 days, then 15 mg orally 3 times a day for 3 days, then 20 mg orally 3 times a day. Maintenance dose: 40–80 mg/day in divided doses
Pimozide		Dose of 1–2 mg a day in divided doses. The dose may be increased thereafter every other day. Most patients are maintained at less than 0.2 mg/kg per day, or 10 mg/day, whichever is less
Tizanidine		15–20 mg/day in divided doses
Valproate sodium		800–1600 mg/day in divided doses
Racemic ketamine		0.5 mg/kg/day in divided doses
Methadone		80–120 mg/day in divided doses
Topical capsaicin cream		0.25%, 0.75% ointment
Proparacaine		0.5% eye drops instilled on the affected side